Adjustable clamp



F. AND G. LANTIERI.

ADJUSTABLE CLAMP.

APPLICATION FILED APR-28. I921.

1,395,839. Patented Nov. 1, 1921.

2 SHEETS-SHEET I.

FbrieZ Lantierz,

.ATTOBNEYS.

F. AND G. LANTIERI.

ADJUSTABLE CLAMP.

APPLlQ-ATION FILED APR. 28, 1921.

.m M8 5 w a f, H m4 I. 4W2 m E m a; m fi 1 a mod! P am? 5 FRANK LANTIERI AND GABRIEL LANTIERI, OF JERSEY CITY,

NEW JERSEY.

ADJUSTABLE CLAMP.

Specification of Letters Patent.

Patented Nov.1, iaai.

AppIication filed April 28, 1921- Serial No. 465,154.

To all whom it may concern:

Be it known that we, FRANK LANTIERI and GABRIEL LANTIERI, citizens of the United States, residing at Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Adjustable Clamps; and We do hereby declare the followingto be a full, clear, and exact description of the invention, such as will enable others skilled inthe art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to characters of reference marked thereon, which form a part of this specification.

This invention relates, generally, to improvements in clamping devlces for various purposes; and, the said invention has reference, more particularly, to a novel construction of adjustable clamp, adapted to carry a head-rest, the clamp being adapted to be secured in a fixed position upon the back of a chair, but certain parts of the clamp being variously adjustable, so as to change the angular position of the head-rest, ac-

' cording to the person seated or reclining in the chair. I I

The present invention has for its principal object to provide a novel and simply constructed clamp comprising a main clamping means for securing the-device in a fixed position upon the back of a chair, said clamping means carrying an element adapted to receive the stem of a head-rest, said element being pivotally and adjustably mounted with relation to the clamping means, for variously adjusting the head-rest and to readily change the angular position of the latter, according to the person seated or reclining in the chair, and without changing the fixed and clamped position of the main clamping means of the device.

Other objects of the present invention not at this time more particularly enumerated.

will be clearly understood from the following detailed description of the present invention.

With the various objects of the present invention in view, the said invention consists, primarily, in the novel adjustable clamping device hereinafter set forth; and, the saidinvention consists, furthermore, in the novel arrangements and combinations of the various devices and parts, as well as in thedetails of the construction of the said,

parts, all of which will be more'fully described in-the following specification, and then finally embodied in the clauses of the claims which are appended to and. which form an essential part of the said specification.

The invention is clearly illustrated in the accompanying drawings, in which Figures 1 and 2 are two side elevations of an adjustable clamp, showing one embodiment of the principles of the present invention, the clamping means of the device being represented in its fixed clamping relation with the head-board of a chair or other support,*and the pivoted head-rest carrier being represented in two of its adjusted positions. Fig. 3 is a face view of the clamp, looking 1n the direction of the arrow 00 in said Fig. 1; and Fig. 1 is a similar view of the clamp, looking in the direction of the arrow y in said Fig. 1. I

Fig. 5 is a top or plan view of the device, with the parts as shown in said Fig. 1; Fig. 6 is a horizontal representation of the device, said section being taken on line 6-6 in said Fig. 1; and 7 is a similar sectional representation, taken on line 7-7 in said Fig. 1.

Similar characters of reference are employed in all the said above described views, to indicate corresponding parts.

Referring now to the several figures of the drawings, the reference-character 1 indicates a fragmentary portion of the top or head-board of a chair, which may be of any suitable construction and shape, and with which the clamping means of the device is adapted to be brought into a fixed clamped relation, in the manner to be presently more fully described, and substantially 95 as shown in Figs. 1 and 2 of the drawings.

The adjustable clamp is generally indicated by the reference-character 2, and the same comprises a main clamping element consisting, essentially, of a curved member 3 10$ provided at its respective end-portions 4c and 5 with a pair of downwardly extending clamping legs or fingers 6 and 7 Upon its convexly formed surface 8, the said curved member 3 has a rearwardly projecting car 105 or lug 9, which is provided with a laterally extending hole or perforation 10 for the reception of a pivot-pin or pintle 11. Extending in an upward direction from said ear or 15 1 9 p eferably located. 91 .6 side the ear or lug, is a projection, as 12, forming a stop-post for the purposes to be presently more fully described.

Pivotally connected with the said rearwardly projectin lug or ear 9, by means of the projecting en -portions of the pivot-pin or pintle 11, are correspondingly located and perforated ears or lugs 14.- of a plate or member 13, said plate or member being formed with a marginal and tubular stem or shank-receiving socket, as 15, which is slitted or has'a saw-cut, as at 16, and is provided with a pair of screw-threaded tightening lugs or ears 17 and 18, and a tightening or binding screw 19, for securely clamping in a vertically adjusted position, within said tubular socket 15, the shank or stem of a suitable head-rest, or other suitable element, as will be clearly'understood froman inspection of the several figures of the drawings. In the upper portion of said plate or member 13 is a screw-threaded hole 20, indicated in dotted outline in Fig. 5 of the drawings, and movably disposed in said hole 20 is a screw-threaded shank or bolt 21, provided at one end with means 22, such as a hand wheel, or other suitable means of rotating said shank or bolt, for bringing the other end23 of said shank or bolt into active contact with the flat face 241 of the previously mentioned projection or stop-post 12, and to thereby move the said'plate or member 13 and its receiving socket 15 into different angular relations to the member 3, as is indicated in Figs. 1 and 2 of the drawings. At its lower end, the said pivoted or hinged plate or member 13 is provided with another screw-threaded hole, as 25, in which is rotatably mounted a screw-threaded shank or bolt 26, provided at its outer end with an operating means 27, such as a hand-wheel or other suitable means for rotating said shank or bolt.

The reference character 28 indicates a suitably formed clamping plate, preferably provided in its chair-engaging surface with longitudinally extending channels or grooves, as 29, said plate being also formed with a socket or depression, as 30. Upon its surface, the said plate 28 is formed with a concaved or dished-out depression, as 31, which is connected with the socket or depression 30 by a hole or tubular portion 32. Suitably. and loosely disposed in said hole or tubular portion 32 is the shank of a screw 33, said screw having its head 34 disposed in said socket or depression 30, and the other end ofsaid screw 33 being suitably screwed into the end of the previously mentioned screw-threaded shank or hole 25, as shown in Fig. 7 of the drawings, and whereby the said clamping plate 28 is connected with said shank or bolt 26, so as to have a freely oscil- Llating relation with reference tothej end of sand shank or bolt, and with reference to the in immovable relation to each other.

plate or member 13, to enable the said shank or bolt 26 and the plate or member 13 to assume different angular relations to the face of the said clamping 28, when in its clamped position upon the head-board of a chair, as will be clearly evident from an inspection of Figs. 1 and 2 of the drawings. If desired, the said clamping plate 28 may be formed along one of its edges with a flange, as 35, which extends along the corresponding side-edge of the plate or member 13, thus preventing excessive lateral movement of the said clamping plate 28, as will beclearly evident.

Having in the foregoing description set forth the general construction of an adjustable clamp, showing one embodiment of the principles of the present invention, we will now briefly set forth the manner of its attachment to the head-board of a chair, or other object, and the manner of producing ]the various adjustments of the plate or mem- The various members or elements 6 and 7 and 28 are first placed upon or against the opposite faces of the member 1, with the member 3 placed above the member 1, the clamping 28, by means of turning the shank or bolt 26, so that it will move in the direction of the arrow 2, see Fig. 7, clamping the device in its securely fixed position upon said element or member 1. The shank or bolt 21 is now turned so as to move in the same direction, until its free end-portion 23 is in firm biting engagement with the surface 24 of the stop-post 12, all of the various members of the device thereby being seculi ed he stem of a head-rest, or other shank when now inserted in the socket-member 15 may be raised or lowered,- and securedin the desired position, against movement, by the clamping ears or lugs 17 and 18 and'the tightening screw 19, as will be clearly evident.

One of these positions is indicated in Fig. 1 of the drawings. Now, suppose it is desired to change the relative positions of the various elements'from these represented in said Fig. 1 to the positions shown in Fig. 2 of the drawings. The shank or bolt 21 is now unscrewed, so as to move in a direction opposite to that indicated by the arrow. 2 The shank or bolt 26 is thereupon also turned, so as to move in a direction opposite from that indicated by the arrow 2, theresult being that the lower. portion of the plate or member 13 will move forward upon the shank or bolt 26, in a direction toward the clamping plate 28, the said plate or member swing ng upon an are having its center in the central axis of the pintle 11, as will be evident, thereby bringing the said shank or bolt 26, the'said plate 13, and the receiving socket 15 into another angular relation, such as is indicated in said Fig. 2. To permanently secure the several elements, thus adjusted, in their clamped position upon the member 1, the shank or bolt 2-1 is again turned, so as tomove in the direction of the arrow 2, until the end 23 of said shank or bolt 21 is again brought into biting'engagement with the flat face 2d of the stoppost 12, whereby all the members of the device are again secured in immovable relation to each other.

Of course it will be understood, that by the proper manipulations of the screwshanks or bolts 21 and 26, in the manner herein-above described any other desirable adjustments may be made.

We are fully aware that changes may be made in the various arrangements and combinations of the several devices and parts, as well as in the details of the construction of the said parts, without departing from the scope of the present invention as set forth in the foregoing specification, and as defined in the clauses of the claims which are appended thereto. Hence, we do not limit our present invention to the exact arrangements and combinations of the several devices and parts as described in the said specification, nor do we confine ourselves to the exact details of the construction of the said parts, as illustrated in the accompanying drawings.

We claim 1. An adjustable clamp comprising a pair of clamping members, a carrier-means pivotally connected with one of said clamping members, and mechanism carried by and cooperating with said carrier-means for moving said carrier-means with relation to said clamping members, said means also cooperating with said clamping members for bringing them into a fixed clamping relation with an object.

2. An adjustable clamp comprising a pair of clamping members, a carrier-means pivotally connected with one of said clamping members, and mechanism carried by and cooperating with said carrier-means for moving said carrier-means with relation to said clamping members, said means also coop erating with said clamping members for bringing them into a fixed clamping relation with an object, and mechanism also carried by said carrier-means and cooperatmg therewith. for SBCIIIlIlgVSfiJd clamping means and said carrier-means immovably with relation to each other.

3; An adjustable clamp comprising a pair of clamping members, a carrier-plate pivotally connected with one of said clamping members, said carrier-plate having a screwthreaded hole, and a screw-threaded shank rotatably mounted in said screw-threaded hole, for movingsaid carrier-plate with re lation to said clamping member, and said screw-threaded shank being adapted to bear.

bringing them into a fixed clamping relation with an object.

4. An adjustable clamp comprising a pair of clamping otally connected with one of said clamping members, said carrier-plate having a screwmembers, a carrier-plate pivthreaded hole, and a screw-threaded shank rotatably mounted in saidv screw-threaded hole, for moving said carrier-plate with relation to said clamping member, and said screw-threaded shank being adapted to bear against the other clamping member for bringing them into a fixed clamping relation with an object, said carrier-plate being provided with a second screw-threaded hole, and a screw-threaded shank rotatably mounted in said last-mentioned hole, said last-mentioned shank cooperating with said first-mentioned clamping member and said carrier-plate for securing said clamping members and said carrier-plate immovably with relation to each other. 1

5. An adjustable clamp comprising a main clamping member, a stop-post extending from said clamping member, a carrier-plate pivotally connected with said clamping member, said carrier-plate being provided with a' screw-threaded hole, and ascrew threaded shank rotatably mounted in said hole, and adapted to 'be brought. into biting retaining engagement with said stop-post.

6. An adjustable clamp comprising a main clamping member, a stop-post extending from said clamping member,

adapted to be brought into biting retaining engagement with said stop-post, a second clamping member, and means for oscillatorily connecting said second clamping memher with said carrier-plate.

8. An adjustable clamp comprising a main clamping member, a pivot-lug extending rearwardly from said member, and a stop post extending in an upward direction from said member, a carrier-plate provided with perforated ears, and in the pivot-lug of said clamping member, a stem-receiving socket-member connected with said carrier-plate, said socket-mem-' late being provided with a carrier-plate pivotally connected with said clamping memiio a pintle mounted in said ears ber having'a slitted portion, clamping-lugs extending from said slitted portion, said carrier-plate being provided with a screwthreaded hole, and a screw-threaded shank 'rotatably mounted in said hole, and adapted to be brought into biting retaining engagement with said stop-post.

9. An adjustable clamp comprislng a main clamping member, a pivot-lug extending 'rearwardly from said member, and a stoppost extending in an upward direction from said member, a carrier-plate provided with perforated ears, a pintle mounted in said ears and in the pivot-lug of said clamping member, a stem-receiving socket-member connected with said carrier-plate, said socket-member having a slitted portion,

' clamping-lugs extending from said slitted' clampingdugs extending from said slitted portion, said carrier-plate being provided with a screw-threaded hole, a screw-threaded shank rotatably. mounted in said hole, and

adapted to be brought into biting retaining ,ing membe'r, a stem-receiving socket-member connected with said carrier-plate, "said socket-member having a slitted portion,

portion, said carrier-plate being provided with a screw-threaded hole, ascrew-threaded shank rotatably mounted in said hole, and adapted to be brought into biting retaining engagement with said stop-post, a second] clamping member, and means for oscillatorily connecting said second clamping memberwith said carrier-plate.

Ill Anf adjustable clamp comprising a maln clamping member, a stop-post extending'from said clamplng member, a carrierplate pivota lly connected with said clamping member, sald carrier-plate being provided with a screw-threaded hole, a screw-threaded shank rotatably mounted in said hole, and adapted to be brought into biting retaining engagement with said stop-post, said carrierplate being provided with another screwthreaded hole, a second sorew-threaded shank rotatably mounted in "said last-mentioned hole, and a second clamping member attached to the rend-portion of said last-mentioned screw-threaded shank, V i

12.An adjustable clamp comprising a main clamping member, astop-post extending from'sald clamplng member, a carrier plate pivotally connected with said clamping member, said carrier-plate being provided with a screw-threaded hole, a screw threaded shank rotatably mounted in said I hole, and adapted to be brought into biting retaining engagement with said stop-post,

said carrier-platebeing provided'with an? other screw-threaded hole, a vsecond screwthreaded shank rotatably mounted in said last-mentioned hole, a second clamping member attached to the end-portionofsaid lastmentioned screw -threaded shank, and a means of oscillatory connection betweensaid second clamping member and tioned screw-threadedshank.

13. An adjustable clamp comprising a main clamping member,a stop-post extendi in from said clamping member, a carrierplatepivotally connected with said clamping member, said carrier-plate being pro vided with a screw-threaded'hole,a screwthreaded shank r'otatably mounted in'saidr hole, and adapted to be brought into biting retaining engagement with said- 'stoppost, said carrier-plate being provided with another screw-threaded hole, a second screwthreadedshank-rotatably mounted in said last-mentioned hole,a secondclamping mem her, said second gclampingmem'ber being said last-menprovided in itsoppositefaces with' receiving depressionsand a tubular connection be? tween said depressions, and a screw having 7 a head located in .oneioi said depressions,

said screw'being loosely mounted in said tubular connection and having its opposite :end screwed into the end-'p'ortion'ofQsaid last-mentioned screwthreaded' sha'nk; for oscillatorily connectingfsaid' last-mentioned tioned screw-threadedshank. V

In testimony, that we claim the invention set forth above we have hereunto set our hand this 15th day of April,' 1921= I V FRANK LANTI-ERI.

' GABRIEL LANTI'ERIJ Witnesses: I I i Enw. I'IENN,. FREDK. G: FRAENTQZELI I, p clamping plate to the end of said last-'men- 

